Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10975657 | Method and apparatus for filling an annulus between casing and rock in an oil or gas well | Rick D. Watts, Dianne Tompkins, Helen Haneferd, Lars Hovda, Hardy Hartmann Nielsen +2 more | 2021-04-13 |